Ocular complications of persistent hyperplastic primary vitreous in three dogs

Vet Ophthalmol. 2001 Mar;4(1):35-40. doi: 10.1046/j.1463-5224.2001.00133.x.

Abstract

Persistent hyperplastic primary vitreous (PHPV) syndrome associated with either severe ocular complications or multiple ocular lesions was diagnosed in three young dogs, a Samoyed, a Spanish Pachon, and a mixed breed dog. Due to opacification of the anterior ocular structures, B-mode and color-flow Doppler ultrasonography were performed to aid diagnosis. The Samoyed presented with unilateral hyphema; the Spanish Pachon presented with unilateral secondary glaucoma associated with uveitis and hyphema OD and leucocoria OU; and the mixed breed presented with bilateral leucocoria. B-mode ultrasonography of the Samoyed revealed a subcapsular cataract and a hyperechoic tubular structure attached from the optic disk to the posterior lens capsule. In the Spanish Pachon B-mode ultrasonography of the right eye indicated microphakia, cataract formation, and a retrolental mass with a thin hyperechoic strand stretching from the optic disk to the posterior lens; and for the right eye cataract formation, PHPV, retinal detachment, and vitreous hemorrhage. In the mixed breed dog, B-mode ultrasonography of both eyes indicated microphthalmia, retrolental mass, and hyperechoic lenses. By color-flow Doppler imaging, blood flow was present in the retrolental mass of the right eye suggesting a persistent hyaloid artery.

MeSH terms

  • Animals
  • Diagnosis, Differential
  • Dog Diseases / diagnosis*
  • Dog Diseases / diagnostic imaging
  • Dogs
  • Eye Diseases / congenital
  • Eye Diseases / diagnosis
  • Eye Diseases / veterinary*
  • Female
  • Hyperplasia / veterinary
  • Lens, Crystalline / abnormalities*
  • Lens, Crystalline / diagnostic imaging
  • Male
  • Syndrome
  • Ultrasonography, Doppler / veterinary
  • Vitreous Body / abnormalities